Upper portion of a container



FIG. 1 is a perspective view of an upper portion of a container, embodying our new design;

FIG. 2 is a top view thereof; and,

FIG. 3 is a side elevational view thereof, all side views being identical thereto.

The broken line showing of a top and bottom portion of a container is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an upper portion of a container, as shown and described. 